How to stop automatic WP Updates?

I use hostgator.com and haven't received any emails about updating WP. I get just the usual notice in the dashboard that a new WP version is available, and do the update from there, after first doing a full backup of my sites.

Hostgator does have Fantastico, which allows you to install WP with just a few clicks. That's how I start a new site in WP, but from then on, I do WP updates from within the WP admin dashboard, not from the cPanel for Hostgator's back end.